Gas heating apparatus.



Patented May 8, 1917.

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JOHN WOLLANT, OF CLEVELAND, OHIO.

GAS HEATING APPARATUS.

Patented May 8, 1917.

Application filed February 18, 1913, Serial No. 749,144. Renewed April7, 1917. Serial No. 160,540.

To all whom it may concern:

Be it known that I, JOHN WVOLLANT, a citizen of the United States,residing at Cleveland, county of Cuyahoga, and State of Ohio, haveinvented certain new and useful Improvements in Gas Heating Apparatus;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to gas heating appaj ratus, and more particularlyto means for heating the cold air, one of the objects of my inventionbeing to provide means for heating the cold air and introducing it to anapartment without its coming into conmeans of the combustion of gases,and by exposing the cold air to the heat generated by this combustionand the hot air gases resulting therefrom.

Other objects of my invention and the particular embodiment by which Ihave here illustrated the invention willbe better understood byreferring to the accompanying drawing and the particular description.

Figure 1 is a section taken through the embodiment of my inventionillustrated here.

Fig. 2 is a horizontal section of the embodiment illustrated in Fig. 1,and

Fig. 3 is a plan view of one of the baffle plates.

Referring now to the drawing, at 1 I show a suitable cell or reservoirfor the cold air as it is introduced into the main part of theapparatus. This cell is not essential to the invention, but is used inthe embodiment illustrated for the convenience it affords. The cold airis introduced through any suitable means, such as a pipe 10, which isconnected to the cell 1 at an opening in the top of the cell as shown at11. The cell is provided with another opening 12, from which a conduit 2leads through the combustion chamber, which is to be described.-

In the form shown, this conduit is shown cylindrical in form, though anysuitably I with suitable openings.

shaped conduit may be employed. This conduit leads through a combustionchamber 5, which is here shown concentric with the conduit and likewisecylindrical, though any suitable form may be employed.

The cell 1 is also provided with openings 100, through which air passesfrom the cell into spaces between the walls 16, 20 and 23.

Within the combustion chamber and preferably at the bottom thereof, Ishow a combustion member, here illustrated as a gas burner 4. This gasburner is preferably annular in form and here surrounds the conduit 2. Apipe 13 enters the burner and the same is provided with a plurality ofopenings 14 through which the gas escapes. The gases may be mixed beforethey are introduced to the burner, or air or other suitable gases may beintroduced into the combustion chamber to combine with the gas escapingfrom the burner. Any suitable means may be provided for performing thisfunction.

A plurality of baffle plates 6 are mounted in the chamber 5 above theburner, and preferably substantially parallel to the burner. Thesebaffle plates are preferably mounted equal distances apart as isillustrated in the form shown. The baffle plates are provided In theform illustrated each baflie plate is annular in form and is providedwith an opening 8, which is created by cutting away a portion of theannular plate. When mounted in the chamber, these baffle plates are soarranged that the openings are in staggered relation to each other,forming a tortuous passage through the chamber, as indicated by thearrows. This passage may be formed in any desired manner, though Iprefer to mount the plates so that the openings of the adjacent plateswill be diametrically opposite to each other.

In the embodiment illustrated the diameter of the cylinder inclosing theconduit 3 is greater than that inclosing the chamber 5 and smaller thanthat formed by the casing 23. It is preferably made concentric withthese members and is mounted on the air cell or reservoir.

The baffle plates engage the outer side of the wall of the conduit 2 attheir inner periphery 15, and the inside of the wall 16 of the chamber 5at their outer periphery 17, so that the heat is absorbed from the hotgases and conducted to the wall of the inner conduit and to the innersurface of the wall of the conduit 3, which is also provided forconducting cold air. Ihis conduit is formed around the combustion.chamber, and is shown at 3.' Any suitable means may be provided to admitair to the space between the conduit 3 and the wall 16.. In the formshown I provide'a plurality of openings 100 in the top of thereservoir 1. The wall of conduit 3 is indicated by and the inner wall isthe outer wall of the combustion chamber 5. The wall 20 may becorrugated or of any other suitable form. The combustion chamber isprovided with an opening 21, through which the products of combustionescape and the combustion chamber and the two said air conduits aresurrounded by a casing 23 having hot air fines 24 through which the airescapes after it has been heated. It will be seen that thesefiues.operate as a means for creating a draft through the apparatus andsucking the air through the conduits and exposing it to the combustionchamber. 7

.The baflie plates are not provided through the full length of thechamberib, but only far enough to absorb all the heat from thegases.Above this point'the chamberis free of such plates. The wall 20 likewiseis not extended above this point, since the gases are cold above thispoint, and'it 1s not desired that the air should be drawn over the--upper part of the wall 16, which will be cool on account of its contactwith the gases robbed of the heat by the battle plates and cooled belowthe temperature of the heated air rising through the space 8. It is notdiflicult to calculate the point along the.

walls of the chamber 5, where the temperature of the gases within thechamber will be so reduced thatthe air which is rising in the space 3will be cooled instead of heated.

About this point the wall 20 ceases, and permits the heated air towithdraw from the Wall 16.

' It will be apparent to those skilled in the art that I haveillustrated but a single form Copies of this patent may be obtained forof my invention, simply for the purpose of illustratin the same.Numerous and em tensive'departu-res may be made from the from forms anddetails without departing the spirit of the invention.

I' claim 2- In combination, a cold air cell, a cold' air pipe leadingthereto, a combustion chamber, said chamber being provided with anopening in the top' thereof for the escape of the products ofcombustion, a circular gas and form a tortuous passage for the productsof combustion through the combustion chamber, the baflle platesengagingthe side Walls-of the chamber, a casing surrounding thecombustion chamber and the conduit and spaced therefrom to form apassage for the passage of air'fr'om said coldair cell, a second conduitleading through the circular gasburner and the'combustion chamber toconduct cold air therethrough, the inner edgesof said baflie platesresting against said second conduit,and hotair fines leading from thetop of'said casing.

In witness whereof, I afiiX my signature in the presence of twowitnesses, this 15th day of Feby., 1913.

JOHN woLLAN-T.

Witnesses:

.JOI-IN S. RIOHEY,

Loo E. SLOUGI-I.

fivecents each, by addressing the commissioner oi? Patents,

Washington, D. 0.

